Error compiling a qt5 application

[Mario Lobo]

Hi there;

I'm trying to compile a qt5 application.

OS: reeBSD 11.1-STABLE #0 r321652: Sat Jul 29 10:49:43 BRT 2017

clang -v
clang version 4.0.1 (tags/RELEASE_401/final)
Target: x86_64-unknown-freebsd11.1
Thread model: posix
InstalledDir: /usr/local/llvm40/bin

When I compile, I get this:

Compiling C++...
In file included from ../../../../../contrib/gtqtc/gtqtc1.cpp:48:
In file included from ../../../../../contrib/gtqtc/gtqtc.h:53:
In file included from /usr/local/include/qt5/QtCore/QThread:1:
In file included from /usr/local/include/qt5/QtCore/qthread.h:43:
In file included from /usr/local/include/qt5/QtCore/qobject.h:46:
In file included from /usr/local/include/qt5/QtCore/qobjectdefs.h:48:
In file included from /usr/local/include/qt5/QtCore/qnamespace.h:43:
In file included from /usr/local/include/qt5/QtCore/qglobal.h:83:
/usr/local/include/qt5/QtCore/qcompilerdetection.h:563:6: error: Qt
requires a C++11 compiler and yours does not seem to be that. #
error Qt requires a C++11 compiler and yours does not seem to be that.

I tried this in make.conf:

CC=clang
CXX=clang++
CXXFLAGS+=-std=c++11

and export CXXFLAGS=-std=c++11

and nothing seems to work.

It seems to me that my clang is new enough to support that standard.

What am i missing here?

Thanks,

-- 
Mario Lobo
http://www.mallavoodoo.com.br
FreeBSD since 2.2.8 [not Pro-Audio.... YET!!]
 
"UNIX was not designed to stop you from doing stupid things, 
because that would also stop you from doing clever things."